WordPress diagnostics plugins

Performance plugin from the WordPress Performance Team, which is a collection of standalone performance features.

The ultimate free Server Info plugin for WordPress. View Memory Limits, PHP/MySQL versions, Datacenter Location, and an Always-On Admin HUD.

Scan your WordPress multisite network to identify which plugins are actively used across sites. Helps admins safely clean up unused plugins.

Diagnostic summary of WordPress setup including themes, plugins, system config, and site stats -- formatted for support forum posting.

Lightweight 404 logger for tracking broken links and bot activity.

This plugin integrates your WordPress site with Sentry error logging system.

Print Basic Facts will display valuable, time saving, information for a WordPress site. Optimize your troubleshooting efforts with this lightweight ap …

Quantely Activity is a lightweight, first-party plugin for WordPress that records pageviews and events.

A plugin that sends error messages to the Sentry error logging system.

Detect plugin conflicts, performance issues, PHP compatibility risks, and debug log errors from your WordPress dashboard.

WordPress maintenance health-check tool with 9-point diagnostics, history tracking, and optional AI-powered reports.

Check, diagnose, and validate WordPress core, plugin, and theme translations — including compiled translation status (WP 6.5+).

Plugin that extracts data on WP installation, installed themes, installed plugins and server info for diagnostic purposes. Export data in csv and json

RHJ4 Diagnostics supports program debugging by making it simple to write tracing information into several log files.

Generate many different types of popup notifications to users from PHP or jQuery with only a single line of code.

A diagnostic tool that helps plugin developers provide better support by collecting relevant system information and managing debug constants.

Check Happy Ordering system status and report bugs to improve your ordering experience.

Spot the broken WooCommerce subscriptions you didn't know about, and fix them with one click you can undo.

Advanced diagnostics and monitoring for WordPress. Real-time debug logs, file integrity checks, and mail testing in a modern dashboard.

Detect performance bottlenecks in WooCommerce stores and monitor checkout, cart, and order timing metrics. All data is stored locally on your site.

Tracks load time and PHP errors for each active extension, storing logs in a custom database table.

A lightweight plugin that logs visits from common AI/LLM crawler user-agents and shows a simple report in wp-admin.

Identify where potential customer enquiries may silently drop off before they cost you business.

Easily generate and share detailed WordPress site reports with Site Status Reporter, including plugins, themes, PHP, server info, and more—fully custo …

All-in-one WordPress diagnostics plugin with conflict detection, Safe Mode, log analysis, performance, security, and local error guidance.

SEO analysis, speed optimization, and diagnostics toolkit for WordPress. All-in-one site health from one dashboard.

Advise-only speed diagnostic scanner that finds the hidden, server-side things slowing your WordPress site and explains exactly how to fix each one.

WordPress problem advisor for site health, email, hosting, performance, update risk, and lead capture checks.

Advanced WordPress Site Health, performance, security, cleanup, snapshots, alerts, and local speed benchmarking for admins.

Diagnostic-only scanner for WooCommerce orders where payment signals and order status may not match.

AI-powered wp-admin assistant for troubleshooting, diagnostics, and approved maintenance actions.

Create a local-only WordPress site report card from observed admin, server, and configuration facts.

Local activity logging for WordPress and WooCommerce changes, with privacy-conscious defaults, review workflow, diagnostics, and CSV export.

Speed-focused diagnostics and guided optimization for oversized WordPress media.

Checks key WordPress site status items from the admin area without external API communication or automatic changes.

Read-only WordPress health checks and cache behavior diagnostics with live frontend validation and URL comparison.

Diagnose common WooCommerce Stripe checkout configuration issues with read-only storefront probes, local webhook self-tests, and actionable findings.

Diagnose and safely repair common website issues with site health, debug, security, performance, cleanup, and recovery tools.